Article of manufacture



J. SCHMUTZ File; March 5, 1924 MM/M/Mf/ @JM/MMM@ #MMM A MMM w ACA/0M w/ @gw/@Ms J) [H/Q. 2% WM A5/@M June 22 1926.

@Home s Patented ,June 22, 41926. l

UNITED STATES PATENT FFECE.

' JULI'US SCHHUTZ, Ol' LOUIBVHLE, KENTUCKY, ASSIGNOR T0 BCHHUTZ HANUFAC- TUBING COMPANY, INCQRPORATED, OF LOUISVILLE, KENTUCKY.

ARTICLE F MANUFACTURE.

Application led March 5, 1924. Serial No. 697,048.

This invention relates to a new article of manufacture which is es ecially adapted for use in connection with tile making of printing plates.

Another important object of the invention is'y to provide an article of manufacture which is of such a construction as to permit the formation of the desired printing characters thereon, means being provided for retaining the printing characters formed on the article against accidental displacement.

Another important object of the invention is to provide an article of manufacture which is constructed of a pliable material and has embedded therein a reinforcing element for the purpose of holding the same in a substantially rigid manner, further tending to prevent the spreading orl lengthening of the article while the same is being used as a printing plate.

' A still further object is to provide an article of manufacture which 1s adapted for use as a printing plate wherein a pliable back is associated with the article for preu venting the creeping or slipping of the same vhen it is in position on the printing cyliners.

A further object is to provide an article of manufacture ofthe above mentioned character, which is simple in construction, inexpensive, strong and durable, and further well adapted `for the purposes for which it is designated.

Other objects and advantages of this invention will become apparent during the course of the following description.

In the accompanying drawing formin a part of this s ciication and in which ike numerals designate like parts throughout the same,-

Figure 1 is a longitudinal sectional view of one form of my invention.

Figure 2 is a similar view showin the same with a rubber backing associated t erewith.

Figure 3 is a longitudinal section of anotherform.

Figure 4 is a similar view with the rubber backing shown in connection therewith.

Figure 5 is still a further form.`

Figure 6 is a view similar to Figure 5 wit a rubber` backing associated therewith.

Figure 7 is a plan of a printing plate formed from lmy article of manufacture showing the same in a process of forming the printing characters thereon. v

In the drawing, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates a layer of rubber and the same has embedded in the rear face thereof the metallic reinforcing plate 2. The purpose of providing the reinforcing plate is to prevent the spreading and lengthening of the printing plate which is formed from my article of manufacture. It is to be understood that the desired printing characters ma be cut in the front face of the layer of rugber in any suitable manner. To prevent the printing plate from creeping or slippin on the printing cylinder of a printing mac ine while the same is in use, a rubber backing, such as is illustrated by the numeral 3 in the drawing, is vulcanized or otherwise secured to the rear face of the layer of rubber and this construction is clearly illustrated in Fig. 2 of the drawing. l

In the form shown in Figs. 3 and 4 of the drawing the base layer 1 has vulcanized on its front face a layer or rubber such as is shown at 4. With a printing plate constructed from the material shown in Figs. 3 and 4 the printing characters are ada ted or may be formed in the front face o the upper layer of rubber 4. In Fig. 3 the article is shown without the rubber backing whereas in Fi 4 the rubber backing is inc uded. It is to e understood that in the formation of the printing characters on the article shown in Figs. 3 and 4, the characters are adapted to be out in the upper layer of rubber 4, for its entire depth so that the same will be supported by the base layer of rubber 1.

In Figs. 5 and 6 of the drawing a still further form is shown wherein the article com rises the base la er of rubber 1, the

from the top layer of rubber ji'for its entire depth, so that the printing characters will be-supported by the u per surface of the canvas strip 5. The rub r backing, such as is shown at 3, in the drawin is also ada ted to be used in conjunction with the form a ove described, and is clearly illustrated in Fig. 6 of the drawin In Fig. 7 I gave illustrated a p iinting plate which is in the process of having the printing characters formed thereon and the partictular form shown in this figure illustrates that the printing characters A Iare cut through the top layer of rubber 4 and will be supported bythe strip of canvas 5. In the formation of these printing characters, any well known machine for this particular purpose may be used or else a suitable hand tool may be used, and I do not wish to limit myself to the particular manner in which the printing characters may be formed.

A` further step which may be taken if desirable, resides in chemically treating the finished plate after the printing characters have been formed thereon, the purpose of this step being to prevent the use of printers ink and cleaners used to clean inks from plates and which has heretofore caused the deterioration of the rubber printin characters. thus causing the further utility of the printing plate with the characters thereon to be destroyed. The chemical treatment of the printing characters on the printing plate formed from my article of manufacture will furthermore prevent any possibility of the characters from dropping oil or causing to be separated from the canvas strip thereby assuring the durability of my device and at the same time assuring the holding of the characters on the strip of canvas. It will, of course, be understood that it is not necessary to include the chemical treatment in order to obtain the good results, but if desired, this step maybe ineluded.

The articles of manufact-ure formin my invention and shown in the various orms in the drawing are adapted to come in long sheets or strips and may be cut to the desired length or size when it is desired to use the 'same in a printing machine. Furthermore, with an article of manufacture of the above mentioned character, the printing characters desired may be formed thereonin an easy and efficient manner, thus enabling the use of myarticle for any desired purpose. Preferably by having a printing plate constructed from my article of manufacture, the same will be used in the printing of lteirtile materials, such as bags or the like, and it is a well known fact that the impression obtained by use of rubber printing characters is better than that which is ordinarily obtained by electrotype plates now commonly used.

As heretofore stated, the purpose of providing the article of manufacture with the reinforcing plate which is embedded in the rear face thereof is to prevent the spreading or lengthening of the printing plate while the same is in position on the printing cylinder and subject to the continual pounding and pressure of the printing operation. The provision of the rubber backing wi-ill also prevent the creeping or slipping of the completed printing plate on the printing cylinder and will also enable a cheaper reinforcing material to be used.

From the foregoing description of the construction of my improved device, it will be seen that I have provided a simple, inexpensive and efficient means for carrying out the objects of the invention, and While I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion, and in the minor details of construction may be resorted to, without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described my invention, what I claim is:

A printing unit comprising a parallelopiped metal plate having openings passing therethrough, the side wall surfaces of the openings from end to end of the openings and between the opposite side surfaces of the plate being disposed at right angles to the opposite side surfaces of the plate, a layer of rubber mounted upon one side sur- 'face of the plate and completely covering Said surface and having projections completely filling the openings in the plate, a. layer of canvas applied to the surface of said layer of rubber and a second layer ol' rubber applied to the outer surface of thc layer of canvas.

In testimony whereof I affix my signature.

JULiVUs scHMUTz. 

